What are Lambda expressions in python?
Lambda expressions : Lambda functions are single-expression functions that are not necessarily bound to a name. Lambda expression is an anonymous function. Executing a lambda function evaluates its expression and then automatically returns its result. So there is always an implicit return statement. It's a shorthand that allows us to write a method in the same place we are going to use it. The difference between lambdas and regular function definitions is that lambda functions are restricted to a single expression. This means a lambda function can't use statements or annotations, not even a return statement. Example: double = lambda x: x * 2 double(2) # it will return 4